THE THORNBURY LAND BRIEF
Land in the
Piedmont Uplands setting.
Thornbury township has 3.83 square miles of land in Chester County. Its Census reference point is in Piedmont Uplands, within Northern Piedmont.
Rounded low hills, open valleys and irregular plains form a transition between Appalachian highlands and the coastal plain. The underlying geology mixes metamorphic, igneous and sedimentary rocks.
Regional context: Northern Piedmont ↗ · Classification at the Census reference point
Thornbury and Chester County
Thornbury is associated with Chester County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Thornbury by land and water
The Census records 0.03 square miles of water within Thornbury, or 0.8% of its total area. It is 0.3 percentage points lower than the 1.1% recorded for Chester County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Thornbury township has 44.2% of the land area of nearby Westtown township (8.66 square miles). These areas describe boundaries, not comparable property prices.

